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6.1u+16.26-7.8u=11.5u-8.82
We move all terms to the left:
6.1u+16.26-7.8u-(11.5u-8.82)=0
We add all the numbers together, and all the variables
-1.7u-(11.5u-8.82)+16.26=0
We get rid of parentheses
-1.7u-11.5u+8.82+16.26=0
We add all the numbers together, and all the variables
-13.2u+25.08=0
We move all terms containing u to the left, all other terms to the right
-13.2u=-25.08
u=-25.08/-13.2
u=1+6.3191489361702/7.0212765957447
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